/*
 * Copyright (C) 2005 - 2013 MaNGOS <http://www.getmangos.com/>
 *
 * Copyright (C) 2008 - 2013 Trinity <http://www.trinitycore.org/>
 *
 * Copyright (C) 2010 - 2013 ProjectSkyfire <http://www.projectskyfire.org/>
 *
 * Copyright (C) 2011 - 2013 ArkCORE <http://www.arkania.net/>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#ifndef _UNITEVENTS
#define _UNITEVENTS

#include "Common.h"

class ThreatContainer;
class ThreatManager;
class HostileReference;

//==============================================================
//==============================================================

enum UNIT_EVENT_TYPE
{
    // Player/Pet changed on/offline status
    UEV_THREAT_REF_ONLINE_STATUS = 1 << 0,

    // Threat for Player/Pet changed
    UEV_THREAT_REF_THREAT_CHANGE = 1 << 1,

    // Player/Pet will be removed from list (dead) [for internal use]
    UEV_THREAT_REF_REMOVE_FROM_LIST = 1 << 2,

    // Player/Pet entered/left  water or some other place where it is/was not accessible for the creature
    UEV_THREAT_REF_ASSECCIBLE_STATUS = 1 << 3,

    // Threat list is going to be sorted (if dirty flag is set)
    UEV_THREAT_SORT_LIST = 1 << 4,

    // New target should be fetched, could tbe the current target as well
    UEV_THREAT_SET_NEXT_TARGET = 1 << 5,

    // A new victim (target) was set. Could be NULL
    UEV_THREAT_VICTIM_CHANGED = 1 << 6,

// Future use
//UEV_UNIT_KILLED                   = 1<<7,

//Future use
//UEV_UNIT_HEALTH_CHANGE            = 1<<8,
};

#define UEV_THREAT_REF_EVENT_MASK (UEV_THREAT_REF_ONLINE_STATUS | UEV_THREAT_REF_THREAT_CHANGE | UEV_THREAT_REF_REMOVE_FROM_LIST | UEV_THREAT_REF_ASSECCIBLE_STATUS)
#define UEV_THREAT_MANAGER_EVENT_MASK (UEV_THREAT_SORT_LIST | UEV_THREAT_SET_NEXT_TARGET | UEV_THREAT_VICTIM_CHANGED)
#define UEV_ALL_EVENT_MASK (0xffffffff)

// Future use
//#define UEV_UNIT_EVENT_MASK (UEV_UNIT_KILLED | UEV_UNIT_HEALTH_CHANGE)

//==============================================================

class UnitBaseEvent
{
private:
    uint32 iType;
public:
    UnitBaseEvent (uint32 pType)
    {
        iType = pType;
    }
    uint32 getType () const
    {
        return iType;
    }
    bool matchesTypeMask (uint32 pMask) const
    {
        return iType & pMask;
    }

    void setType (uint32 pType)
    {
        iType = pType;
    }
};

//==============================================================

class ThreatRefStatusChangeEvent: public UnitBaseEvent
{
private:
    HostileReference* iHostileReference;
    union
    {
        float iFValue;
        int32 iIValue;
        bool iBValue;
    };
    ThreatManager* iThreatManager;
public:
    ThreatRefStatusChangeEvent (uint32 pType) :
            UnitBaseEvent(pType)
    {
        iHostileReference = NULL;
    }

    ThreatRefStatusChangeEvent (uint32 pType, HostileReference* pHostileReference) :
            UnitBaseEvent(pType)
    {
        iHostileReference = pHostileReference;
    }

    ThreatRefStatusChangeEvent (uint32 pType, HostileReference* pHostileReference, float pValue) :
            UnitBaseEvent(pType)
    {
        iHostileReference = pHostileReference;
        iFValue = pValue;
    }

    ThreatRefStatusChangeEvent (uint32 pType, HostileReference* pHostileReference, bool pValue) :
            UnitBaseEvent(pType)
    {
        iHostileReference = pHostileReference;
        iBValue = pValue;
    }

    int32 getIValue () const
    {
        return iIValue;
    }

    float getFValue () const
    {
        return iFValue;
    }

    bool getBValue () const
    {
        return iBValue;
    }

    void setBValue (bool pValue)
    {
        iBValue = pValue;
    }

    HostileReference* getReference () const
    {
        return iHostileReference;
    }

    void setThreatManager (ThreatManager* pThreatManager)
    {
        iThreatManager = pThreatManager;
    }

    ThreatManager* getThreatManager () const
    {
        return iThreatManager;
    }
};

//==============================================================

class ThreatManagerEvent: public ThreatRefStatusChangeEvent
{
private:
    ThreatContainer* iThreatContainer;
public:
    ThreatManagerEvent (uint32 pType) :
            ThreatRefStatusChangeEvent(pType)
    {
    }
    ThreatManagerEvent (uint32 pType, HostileReference* pHostileReference) :
            ThreatRefStatusChangeEvent(pType, pHostileReference)
    {
    }

    void setThreatContainer (ThreatContainer* pThreatContainer)
    {
        iThreatContainer = pThreatContainer;
    }

    ThreatContainer* getThreatContainer () const
    {
        return iThreatContainer;
    }
};

//==============================================================
#endif
